.data-picker{
display: flex;
flex-direction: row;
width: 100%;
height: 250px;
border: 1px solid #000;
}
/* 这个滚动 */
.scroll-container{ 
    position: relative;
    width: 100%;
    height: 100%;
}
/* 盒子里面不滚动 */
.scroll-container .wrapper{
    overflow-y: auto;
    height: 250px;
    /* 捕捉滚动内部的子元素 监控y */
    scroll-snap-type: y mandatory;
}
.wrapper .item{
    display: flex;
    align-items: center;
    justify-content: center;
    /* 250/5 */
    height: 50px;
    /* 在子元素的中间 */
    scroll-snap-align: center;
    color: #000;
}
/* 去掉滚动条 */
::-webkit-scrollbar{
    display: none;
}
.target-center{
    position: absolute;
    top: 100px;
    left: 0;
    width: 100%;
    height: 50px;
    z-index: -1;
    border-top:1px solid #ddd;
    border-bottom: 1px solid #ddd;
    box-sizing: border-box;
}
.mask{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background-image: linear-gradient(
        180deg,
        hsla(0,0%,100%,1),
        hsla(0,0%,100%,.8),
        hsla(0,0%,100%,0),
        hsla(0,0%,100%,.8),
        hsla(0,0%,100%,1)

    );
    pointer-events: none;
}